Foundation for molds



UNITED STATES PATENT OEErcE.

CHARLES L. MILLER AND JEROME GEORGE, OF CHICAGO, ILLINOIS.

FOUNDATION FOR MOLDs.

SPECIFICATION forming part of Letters Patent No. 518,418, dated April17, 1894.

Application filed September 19, 1893. Serial No. 485,902. (No model.)

To all whom t may concern:

Be it known that We, CHARLES L. MILLER and JEROME R. GEORGE, of Chicago,Illinois, have invented anew and useful Improvement in Foundations forMolds, of which the following is a specification.

The object of our invention, which is an improvement upon the onedescribed in our application filed December 3l, 1892, Serial No.456,922, is to provide a firm foundation for the molds or chills used inblast furnace cast-houses; and the invention consists in the featuresand combinations hereinafter described and claimed.

In the accompanying drawings, Figure lis a cross sectional elevation ofour improved mold in position; Fig. 2 a plan View of a portion of thefoundation, showing the mold broken; and Fig. 3 a perspective viewof ablock o1' clamp for retaining the mold in p0- sition on the foundation.

A is the foundation; B I-beams embedded in the foundation and extendingup therefrom; C a mold restingon the I-beams; and D blocks or clamps forretaining the mold in position on the I-beams.

In the process of casting metal as now conducted, the ordinary bed of acast-house is used as a foundation for the molds. This bed beinggenerally formed of sand, clay or similar material, it is very diiiicultto retain the molds in position, owing to their tendency to creep ormove about, which tendency is increased by their own expansion orcontraction. The object of our invention is to overcome this difficulty,and to provide a firm foundation for the ,molds on which their movementscan be readily controlled.

Our improved foundation,which covers substantially the entire cast-housefloor, preferably consists of brick-work, in the form of walls or piers,two or three feet high, and extending at right angles to the directionof the molds. There may be las many of these walls or piers as desired,or the entire floor space may be covered with a bed of concrete ormasonry. A

As shown in Fig. 1, we have placed one pier under each joint between thesections forming the mold. Theline of the foundation has a gradualincline away from` the blast furnace, so that the last mold-the onefarthest 'from the furnace-will be the lowest in the be such as topermit the molten material to readily iiow into all of them.

When the foundation is constructed in the form shown, an I-beam isembedded in each of the piers and extends upwardly a few inchestherefrom, the distance between the top of the foundation and the upperanges of the I-beam being open or filled with sand or other loosematerial, as desired. The upper anges of the I-beams are perforated, anda suitable block or distance piece, similarly perforated, is bolted orpinned thereto. This block may be in the form of a clamp, in which caselit may be secured to the I-beam by a wedge, screw, or otherwise, theperforating and bolting being then unnecessary. These blocks or clampsbeing placed at the sides of the molds, respectively, hold them inposition laterally, and thus prevent sidewise movement. Notwithstandingthis, however, the molds are free to move lengthwise, as may be requiredby expansion and contraction or otherwise.

Although we have shown I-beams embedded in the piers, We contemplate theuse of other forms of metallic supportsfor the molds, as, for instance,rails, channel-irons, castpla'tes, &c. Nor do we intend to limitourselves to the use of I-beams or supports on each of the piers, itbeing our intention to use them on such as may be desired and omit themfrom others. found that good results may be obtained by using them onthe middle piers and omitting them from the end piers, in such case thelatter lpiers being built up high enough to support the molds; and,generally, we do not intend to limit ourselves to minor features ordetails of construction.

We claim- .1. In a blast-furnace cast-house, a foundation for moldscomprising masonry, metallic supports extending upwardfrom the masonry,

We have particularly ICQ molds placed on the supports and blocks or orclamps secured to the I-beams for holding clamps secured to the supportsfor holding the molds in position laterally, substantially as described.

2. In a blast-furnace cast-house, a foundation for molds comprisingWalls or piers of brick-Work, I-beams embedded in the brick- Work andextending up therefrom, and blocks the molds in position laterally,substantially ro as described.

CHAS. L. MILLER. JEROME R. GEORGE. Witnesses:

EPHRAIM BANNIN G, THOMAS A. BANNING.

